The standard gauge in most countries is 1, 435 mm while in russia the railroads have a gauge of 1, 524 mm. that gauge was finally adopted when the first main-line moscow – st. petersburg railway was under construction (1842–1851 thus russia was the world's first country where the uniform gauge was adopted for all railways. in america, the gauge was unified only in 1886.

Стандартная колея у большинстве стран 1.435 мм, пока в России железные дороги имеют колею 1.524 мм. Та колея была окончательно принята когда первая главная линия Москва - Санкт-Петербург была сконструирована (1842-1851). Хоть Россия была проводной страной во всем мире, где равномерная колея была принята для всех железных дорог. В Америке колея была единой лишь в 1886 году.

1)I like this book.
I don’t like this book.
Do you like this book?
I so like this book!
I like this book, since I had written it(в этом типе не очень уверена)
2)I study at school every day.
I don’t study at school every day.
Do you study at school every day?
I study at school on Saturday.
I have studied at school since 6 years, but my friend went at school since 7 years.
3)I watched TV yesterday.
I didn’t watch TV yesterday.
Did you watch TV yesterday?
I want to watch TV!
I was watching TV, while my sister slept.

I live in Russia. This is my home country. Our country is multinational.
It covers half of Europe and the third part of Asia. The capital of Russia, Moscow.
No one can deny that this is a great country in every sense of the word. Russia is very rich in various natural resources, such as coal, oil and gas, many forests and rivers. The cultural heritage of Russia is rich and diverse. The names of Tolstoy, Dostoevsky, Tchaikovsky are known all over the world. The history of Russia is full of glory.
I really love my country!